You can also read this article for more MAF sensor cleaning options.
#AUDI A4 MASS AIR FLOW SENSOR PROBLEMS FREE#
Using a CRC mass airflow sensor cleaner, you just have to remove the sensor and open the CRC spray head then Spray the filament till it is dirt free and clean, then you now have to re-install or couple back the MAF sensor. This filament of your car’s MAF sensor can get dirty and will make it go bad, so it’s important that a regular cleaning schedule is maintained to keep the MAF (mass airflow) Sensor running at its optimal state. Sensor On Your Car – P0100 P0104 P0171 P0172 P0174 Cleaning MAF sensor This sensor is functional just like the rest but it additionally forms a vortex sensed by a mirror and a photocoupler.Ĭonverted to power to be sent and deduced by the power-train control module. The next and final type of MAF sensor is the Karmen Vortex MAF sensor. Usually, the hot wire mass air sensor resistance will increase or decreases as cold air pass through the filament, creating an increased current to maintain the sensor’s heat which is later transformed into a current signal and then sent to PCM (power-train control module) for the adjustment of the air-fuel ratio. It is the hot wire mass airflow sensor that regulates the mass air flowing into the car engine’s air intake system. The type of MAF sensor is the Hotwire MAF sensor, which has a heated filament like a toaster. Its rate or frequency as does the signal that is sent to ECM (Engine Cold Wire MAF SensorĬ old wire MAF sensor on its own utilizes a thin metallic strip that vibrates’ as the air is passing through. It also on some occasions can use a changing Voltage signal to the PCM as a measure of the air volume. V ane MAF sensor otherwise called airflow meter operates using a potentiometer to transfer a variable. They include the Vane also known as an airflow meter, the cold wire, hotwire, and the Karmen Vortex MAF sensors. There are several types of MAF sensors found on vehicles.